139055599889 has 2 divisors, whose sum is σ = 139055599890. Its totient is φ = 139055599888.

The previous prime is 139055599867. The next prime is 139055599897. The reversal of 139055599889 is 988995550931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99734692864 + 39320907025 = 315808^2 + 198295^2 .

It is a cyclic number.

It is not a de Polignac number, because 139055599889 - 2¹⁶ = 139055534353 is a prime.

It is not a weakly prime, because it can be changed into another prime (139055599489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69527799944 + 69527799945.

It is an arithmetic number, because the mean of its divisors is an integer number (69527799945).

Almost surely, 2^139055599889 is an apocalyptic number.

It is an amenable number.

139055599889 is a deficient number, since it is larger than the sum of its proper divisors (1).

139055599889 is an equidigital number, since it uses as much as digits as its factorization.

139055599889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464000, while the sum is 71.

The spelling of 139055599889 in words is "one hundred thirty-nine billion, fifty-five million, five hundred ninety-nine thousand, eight hundred eighty-nine".